CN209451614U - A kind of cement kiln desulphurization system - Google Patents
A kind of cement kiln desulphurization system Download PDFInfo
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- CN209451614U CN209451614U CN201822070442.XU CN201822070442U CN209451614U CN 209451614 U CN209451614 U CN 209451614U CN 201822070442 U CN201822070442 U CN 201822070442U CN 209451614 U CN209451614 U CN 209451614U
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- Prior art keywords
- cement kiln
- desulfurized powder
- desulphurization system
- desulfurization
- desulfurized
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Abstract
The utility model discloses a kind of cement kiln desulphurization systems, including desulfurization section, the desulfurization section is located in the connecting pipe between high-temperature blower outlet and raw mill, at least provided with two rows of desulfurized powder nozzles on the inner wall of the desulfurization section, is additionally provided with multiple atomizers between row and row；The desulfurized powder nozzle is connect with desulfurized powder tank, and the atomizer is connect with desulfurization flow container.Reaction is fast, and stability is strong.Desulfurized powder is directly injected into sulfur contained high temoperature flue gas by the utility model, is generated and is reacted immediately with sulfurous gas, and desulfurization section is in gas pipeline, and the raw material of high concentration do not influence, and stability is very strong, is reacted more abundant.
Description
Technical field
The utility model relates to cement kiln technical field of desulfurization more particularly to a kind of cement kiln desulphurization systems.
Background technique
The year two thousand twenty country implements the 4th period discharge standard, it is desirable that key area cement kiln SO2Pollution factor discharge index
Less than 50mg/m3.Desulfurization technology mainstream is two kinds of technologies of wet desulphurization and compound desulfurization at present, and wet desulphurization investment is high, takes up an area
Area is big, while desulfuration pipeline is not frequently used and easily blocks；Compound desulfurization small investment, but when kiln system operating condition is unstable,
Effect is poor, and environment protection emission index request is not achieved, meanwhile, when solid desulfurating agent is added due to calcium oxide in higher influence kiln
Calcining, causes clinker quality to fluctuate.Therefore, how under the premise of reaching environment protection control index request, while kiln is not influenced again
Interior calcining, inexpensive desulfurization technology become cement production enterprise main problem in the urgent need to address.
Utility model content
The purpose of this utility model is exactly to solve the above-mentioned problems, to provide a kind of cement kiln desulphurization system, and reaction is fast,
Stability is strong, at low cost, high-efficient.
To achieve the goals above, the utility model adopts the following technical solution:
A kind of cement kiln desulphurization system, including desulfurization section, the desulfurization section are located between high-temperature blower outlet and raw mill
Connecting pipe on,
At least provided with two rows of desulfurized powder nozzles on the inner wall of the desulfurization section, it is additionally provided with multiple atomization sprays between row and row
Head；
The desulfurized powder nozzle is connect with desulfurized powder tank, and the atomizer is connect with desulfurization flow container.
Pipeline between the atomizer and desulfurization flow container is equipped with booster pump.
Pipeline between the desulfurized powder nozzle and desulfurized powder tank is equipped with air lift mud pump.
The outlet of the raw mill is sequentially connected dust-precipitator and chimney by pipeline.
The raw mill and dust-precipitator are also all connect with homogenizing storehouse.
Pipeline between the desulfurized powder nozzle and desulfurized powder tank is equipped with electrically-controlled valve, and the electrically-controlled valve and PID are intelligently controlled
Device connection processed, the PID intelligent controller are communicated with central control system.
Sulphur powder nozzle is often got rid of to be set at equal intervals there are three desulfurized powder nozzle.
The entrance of high-temperature blower connects the air outlet of preheater by pipeline.The wind that preheater comes out enters pipeline, passes through
Pipeline enters high-temperature blower.
The beneficial effects of the utility model are:
1, reaction is fast, and stability is strong.Desulfurized powder is directly injected into sulfur contained high temoperature flue gas by the utility model, with sulfur-bearing
Gas generates reaction immediately, and desulfurization section is in gas pipeline, and the raw material of high concentration do not influence, and stability is very strong, and reaction is more filled
Point, it is less than 50mg/m in 5 minutes3。
2, on process system without influence.The utility model injects directly on reaction in hot-gas channel, after the reaction was completed
Homogenizing storehouse is entered jointly into dust-precipitator and raw material, and system is not influenced.
3, at low cost, high-efficient.If discharging sulphur index in 600mg/m3, 2 yuan or so of ton clinker cost, desulfuration efficiency is up to
95%.
4, PID intelligent controller is communicated with central control system, and central control system is according to gas during clinker burning
How much is the concentration of sulfur content in body, adjusts the injection dosage of desulfurized powder at any time, realizes unattended.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Wherein, 1. high-temperature blower, 2. desulfurized powder nozzles, 3. desulfurized powder tanks, 4. air lift mud pumps, 5. booster pumps, 6. desulfurization
Flow container.
Specific embodiment:
The utility model is described further with embodiment with reference to the accompanying drawing:
As shown in Figure 1, a kind of cement kiln desulphurization system, including desulfurization section, the desulfurization section be located at the outlet of high-temperature blower 1 and
In connecting pipe between raw mill,
The inner wall of desulfurization section is equipped with two rows of desulfurized powder nozzles 2, is additionally provided with multiple atomizers between row and row；
Desulfurized powder nozzle 2 is connect with desulfurized powder tank 3, and atomizer is connect with desulfurization flow container 6.
Pipeline between atomizer and desulfurization flow container 6 is equipped with booster pump 5.
Pipeline between desulfurized powder nozzle 2 and desulfurized powder tank 3 is equipped with air lift mud pump 4.
The outlet of raw mill is sequentially connected dust-precipitator and chimney by pipeline.Raw mill and dust-precipitator also all connect with homogenizing storehouse
It connects.
Pipeline between desulfurized powder nozzle and desulfurized powder tank is equipped with electrically-controlled valve, and electrically-controlled valve is connect with PID intelligent controller,
The PID intelligent controller is communicated with central control system.
Sulphur powder nozzle is often got rid of to be set at equal intervals there are three desulfurized powder nozzle.
The entrance of high-temperature blower connects the air outlet of preheater by pipeline.
The wind that preheater comes out enters pipeline, enters high-temperature blower by pipeline.
The desulfurized powder being configured to is transported to temperature 200-300 DEG C of high-temperature blower outlet conduit position by air lift mud pump
It sets, then passes through the spray head of six points of two rows, desulfurized powder is ejected into pipeline by swirl channel.Booster pump is by desulfurization
Liquid is transported to atomizer, and by three atomizers among upper and lower two rows eddy flow, doctor solution is injected in high-temperature pipe,
It is reacted with sulfurous gas, reaches desulfurization effect.
Conventional composite desulfurization technology and raw material are mixed into pre-heating system, since the big reaction of dust concentration is insufficient, instead
Most fastly at 10 minutes or so between seasonable.Desulfurized powder is directly injected into sulfur contained high temoperature flue gas by the utility model, with sour gas
Body generates reaction immediately, and desulfurization section is in gas pipeline, and the raw material of high concentration do not influence, and stability is very strong, reacts more abundant,
It is less than 50mg/m in 5 minutes3。
Traditional desulfurization technology is added in raw material using solid desulfurating agent (main component is calcium oxide), and saturation ratio is caused
It is higher, influence calcining and clinker quality in kiln；The utility model injects directly on reaction in hot-gas channel, after the reaction was completed
Homogenizing storehouse is entered jointly into dust-precipitator and raw material, and process system is not influenced.
It is at low cost, high-efficient.If discharging sulphur index in 600mg/m3, 2 yuan or so of ton clinker cost and existing desulfurization technology
2-6 yuan/ton or so is reduced compared to ton clinker desulphurization cost, desulfuration efficiency is up to 95%.
PID intelligent controller is communicated with central control system, and central control system is according to gas during clinker burning
How much is the concentration of middle sulfur content, adjusts the injection dosage of desulfurized powder at any time, realizes unattended.
It is above-mentioned although specific embodiments of the present invention are described with reference to the accompanying drawings, but it is not practical new to this
The limitation of type protection scope, those skilled in the art should understand that, based on the technical solution of the present invention, ability
Field technique personnel do not need to make the creative labor the various modifications or changes that can be made still in the protection model of the utility model
Within enclosing.
Claims (8)
1. a kind of cement kiln desulphurization system, characterized in that including desulfurization section, the desulfurization section is located at high-temperature blower outlet and raw material
In connecting pipe between mill,
At least provided with two rows of desulfurized powder nozzles on the inner wall of the desulfurization section, it is additionally provided with multiple atomizers between row and row；
The desulfurized powder nozzle is connect with desulfurized powder tank, and the atomizer is connect with desulfurization flow container.
2. a kind of cement kiln desulphurization system as described in claim 1, characterized in that between the atomizer and desulfurization flow container
Pipeline be equipped with booster pump.
3. a kind of cement kiln desulphurization system as described in claim 1, characterized in that the desulfurized powder nozzle and desulfurized powder tank it
Between pipeline be equipped with air lift mud pump.
4. a kind of cement kiln desulphurization system as described in claim 1, characterized in that the outlet of the raw mill by pipeline according to
Secondary connection dust-precipitator and chimney.
5. a kind of cement kiln desulphurization system as claimed in claim 4, characterized in that the raw mill and dust-precipitator are also all and
Change library connection.
6. a kind of cement kiln desulphurization system as described in claim 1-4 any one, characterized in that the desulfurized powder nozzle with
Pipeline between desulfurized powder tank is equipped with electrically-controlled valve, and the electrically-controlled valve is connect with PID intelligent controller, the PID intelligent control
Device is communicated with central control system.
7. a kind of cement kiln desulphurization system as described in claim 1-4 any one, characterized in that often get rid of sulphur powder nozzle etc.
Spacing is set there are three desulfurized powder nozzle.
8. a kind of cement kiln desulphurization system as described in claim 1-4 any one, characterized in that the entrance of high-temperature blower is logical
The air outlet of piping connection preheater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822070442.XU CN209451614U (en) | 2018-12-10 | 2018-12-10 | A kind of cement kiln desulphurization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822070442.XU CN209451614U (en) | 2018-12-10 | 2018-12-10 | A kind of cement kiln desulphurization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209451614U true CN209451614U (en) | 2019-10-01 |
Family
ID=68039045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822070442.XU Expired - Fee Related CN209451614U (en) | 2018-12-10 | 2018-12-10 | A kind of cement kiln desulphurization system |
Country Status (1)
| Country | Link |
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| CN (1) | CN209451614U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115974435A (en) * | 2023-01-10 | 2023-04-18 | 福建龙麟环境工程有限公司 | Dynamic sulfur suppression system and method for novel dry-process cement kiln under automatic control of DCS |
-
2018
- 2018-12-10 CN CN201822070442.XU patent/CN209451614U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115974435A (en) * | 2023-01-10 | 2023-04-18 | 福建龙麟环境工程有限公司 | Dynamic sulfur suppression system and method for novel dry-process cement kiln under automatic control of DCS |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191001 Termination date: 20201210 |